Just finished my b20vtec build,b20z with b16 head.
Car started right up and seems to run fine with the
p2t ecu from the 00 si.I got a cel code 45(too rich/too lean).
I'm ordering a chipped ecu from phearable.net tomorrow
and want to know if that will get rid of the code?
I will be getting it dyno tuned also.

Am I most likely getting this code because of the ecu i'm using?

thanks for any help

 

Its prolly cuz of injectors, assuming you are using bigger then stock injectors

 

no,stock injectors
stock ecu from 00 si, for now
figuring it will go away once new ecu arrives and get it tuned
and a few others say its the ecu and it will go away

 

how were you able to run the 00 si ecu? doesnt it have an immobilizer unit?

 

No si ecu doesn't have immobilizer